Connecting an ISDN PRI to a Dialogic board

[amcomsoft]

I am currently trying to connect a Meridian switch to a Dialogic card. The line is configured as a ISDN PRI.

The problem is that the Dialogic board needs to be the user side and the switch needs to be the network side.

The only interfaces that the Meridian will allow you to change the set the IFC to NET is SL1, ESIG and ISIG. THe Dialogic board can not use these. So right now the switch is set to IFC ESS4 and SIDE USR because I can not switch it to SIDE NET.

If I set the Dialogic board interface to 4ess the service will start but the D channel will not come up. If I set the Dialogic Board interface to NT1 I get the D channel up and I can place an internal outbound call but I can not receive any inbound calls.

Apparently we have used a similar configuration that works for both inbound and outbound calls but no one can help me figure out why one works but another does not. I am not sure what if any differences there are, and I guess I do not know the right questions to ask.

Any help or info in any way would be more than greatly appreciated!!!

 

[Stevehewitt]

I'm a newbie to telephony, but we have a Succession Release 4 with one of our 1Mb PRI Cards setup with 30 channels talking to a Dialogic card on a thrid party hardware dialler. I believe it's using QSIG to communicate. We're only using it to pass calls internally; however in theory this should also allow inbound / outbound calls externally. (As the switch is seeing the 30 channels as normal trunks.)

Again, I maybe talking rubbish - although the basics are correct. (Newbie! )

Good Luck.


Steve.

 

[amcomsoft]

The Dialogic board I am using is a D/240-JCT-T1 and I do not have QSIG as an option under the Interface-ISDNProtocol. Your Dialogic board supports QSIG? What Dialogic board do you have? Not tha I have a choice, this is what I was given to work with.

 

[johnpoole]

ifc is not qsig for a qsig pri. here's a copy of mine, this one is to a cisco but i've used it for other type ifc's.. if your 3 or above qsig is in the box.

http://www.tek-tips.com/viewthread.cfm?qid=1017219

john poole
bellsouth business
columbia,sc

 

[amcomsoft]

If I were to use this what would I set the interface to on the Dialogic board? THe only option i have are:
1TR6
4ESS
5ESS
CTR4
DASS2
DMS
DPNSS
ETN
ETU
NE1
NI2
NONE
NT1
NTT
QNT
QTE
QTN
QTU
TPH
TPHNT
VN
VNNT

 

[mikeyb123]

I have a feeling that this board doesn't support ISDN protocols.

If I remember from working on I3 stuff there were boards for CAS and boards for CSS signalling protocols

It's not getting any smarter out there. You have to come to terms with stupidity, and make it work for you.

 

[amcomsoft]

I wish that were the case but we have one working with the same setup, only no one here can help me figure out what is different with this one. I think my limited knowledge of switches is affecting my ability to ask the right questions.

 

[mikeyb123]

can you see what firmware is loaded onto the cards?

It's not getting any smarter out there. You have to come to terms with stupidity, and make it work for you.

 

[amcomsoft]

Intel Dialogic System Software:
Release SR5.1.1, Version DNA5, Build 30, Service Pack 3

The firmware that gets loaded depends on the Interface I select. For example if I select the NT1 interface I get:

D/240JCT-T1 (PCI ID 1) Download .. SPISNT1 Firmware Version 6.65

1 Dialogic Board Successfully Installed

 

[nhphoneguy]

I do have a PRI card talking to a 3rd party product-
On the Succession (or Meridian) S100 for IFC will let you change the side to NET.
The other device (video imux in our case)is configured for NT switch. You might want to try that.
If you have Euro or Qsig option, that should work also.

 

[amcomsoft]

I found out yesterday that my initial setup was working the whole time. The guy in charge of the switch had something disabled so it was not passing any inbound calls to me at all. He enabled whatever was disabled and all is well for the time being